3(n-1)=12

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Solution for 3(n-1)=12 equation:


3(n-1)=12

We simplify the equation to the form, which is simple to understand
3(n-1)=12

Reorder the terms in parentheses
+(+3n-3)=12

Remove unnecessary parentheses
+3n-3=+12

We move all terms containing n to the left and all other terms to the right.
+3n=+12+3

We simplify left and right side of the equation.
+3n=+15

We divide both sides of the equation by 3 to get n.
n=5

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